Traditionally a sneak peek at next year's awards season, the 2015 London Film Festival begins on 7 October, and we've rounded up the films, shorts and documentaries exploring technology and other geeky pursuits.

Steve Jobs, cyberstalking, Evel Knievel and Star Wars are just some of the subjects of films in LFF 2015.

To kick off our gallery, stars from a galaxy far, far away discuss how their lives changed when they appeared in even the tiniest "Star Wars" roles in the documentary "Elstree 1976", named after the London film studio where the first movie was shot.

"The American Sessions" sees musical luminaries such as Elton John, Nas and Willie Nelson record using a recreated Western Electric lathe, the pulley-operated analogue device that pioneered recorded music.